The "What word used to be a family name" test.

Olivier - Lucien Olivier was the chef and creator of the salad. He never told anyone the real recipe.

Bluetooth - Developers named the technology in honor of Harald I the Blue-toothed (Blue tooth), the Viking king.

Jacuzzi is the surname of the creator of the bubble bath. However, this Italian was called Jacuzzi (Jacuzzi).

Beefstroganoff is French for "beef in the Stroganoff way" in the name of Count Stroganoff. And in French, because it was the nationality of the chef himself.

Hooligan is the surname of an Irish family, whose frenzied temper was legendary and constantly featured in newspaper chronicles.

Chauvinism comes from Nicolas Chauvin, a soldier of Napoleon who expressed the country's exceptionalism in pathos-laden speeches.

Silhouette - Etienne de Silhouette was an 18th century financier with a fun hobby of tracing a person's shadow on a wall. The hobby was so unusual for the time that it made its creator famous throughout his Europe.

Attic - François Mansart was the first French architect to utilize attic spaces for a complete household back in the 17th century.